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Asteroid 7 Iris

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Asteroid 7 Iris Position

Asteroid 7 Iris is currently in the constellation of . The current Right Ascension is 17h 25m 22s and the Declination is -24° 09’ 41”.

17h 25m 22s
-24° 09’ 41”

Simplified sky chart showing where Asteroid 7 Iris is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Asteroid 7 Iris in on January, 29 2020
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart showing where Asteroid 7 Iris is right now (view fullscreen)

7 Iris
RA: 17h 25m 22s
Dec: -24° 09’ 41”
Deep sky finder chart for Asteroid 7 Iris
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Asteroid 7 Iris?, a page that provides all the information needed to find Asteroid 7 Iris in the sky and additional links to sky charts.

Asteroid 7 Iris Distance

The distance of Asteroid 7 Iris from Earth is currently 0 kilometers, equivalent to 0.000000 Astronomical Units. Light takes to travel from Asteroid 7 Iris and arrive to us.


The following chart shows the distance of Asteroid 7 Iris from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Asteroid 7 Iris from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 7 Iris from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Asteroid 7 Iris to Earth

Between January 2013 and December 2100 the closest approach of Asteroid 7 Iris to Earth happens on Tue Jan 1 2013 at a distance of 0.00000000 Astronomical Units, or 0 kilometers:

Tue Jan 1 2013

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Asteroid 7 Iris brightness

The current visual magnitude of Asteroid 7 Iris is -100.00.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid 7 Iris, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Asteroid 7 Iris between January 2013 and December 2100

Asteroid 7 Iris rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Asteroid 7 Iris rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 114.2°
Max altitude: 14.4°
Azimuth: 245.8°
Asteroid 7 Iris is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Asteroid 7 Iris touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid 7 Iris Orbital Elements

The following table lists the orbital elements of Asteroid 7 Iris at epoch 26 April 2019 00:00 UTC (JD: 2458600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.23120579
Orbit inclination i 5.52365139°
Perihelion distance q 1.83383082 AU
274,337,187 km
Aphelion distance Q 2.93683681 AU
439,344,534 km
Semi-major axis a 2.38533381 AU
356,840,860 km
Orbital period period 3.6800 years
1,345.6192 days
Date of perihelion transit Tp 2017-Nov-18 03:14:27
2,458,075.6350 JD
Next perihelion transit 2021-Jul-25 18:06
2,459,421.2542 JD
Argument of perihelion peri 145.26510583492°
Longitude of the ascending node node 259.56323068897°
Mean anomaly M 140.41965556402°
Mean motion n 0.26753483°/day

Visualization of Asteroid 7 Iris Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid 7 Iris with respect of the Sun and the orbits of the major planets. The position of Asteroid 7 Iris and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Asteroid 7 Iris Physical Data

The following shows the known values of the most important physical parameters of Asteroid 7 Iris. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 199.83 km 0.0157
Sideral Rotation 7.1390 hours 0.2983
Absolute Magnitude 5.51
Geometric Albedo 0.2766

Asteroid 7 Iris 15 Days Ephemeris

The following table lists the ephemerides of Asteroid 7 Iris computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid 7 Iris in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Jan 22 17h 13m 09s -24° 03’ 08” N.A.
2020 Jan 23 17h 14m 43s -24° 04’ 12” N.A.
2020 Jan 24 17h 16m 15s -24° 05’ 11” N.A.
2020 Jan 25 17h 17m 48s -24° 06’ 06” N.A.
2020 Jan 26 17h 19m 22s -24° 06’ 56” N.A.
2020 Jan 27 17h 20m 53s -24° 07’ 45” N.A.
2020 Jan 28 17h 22m 26s -24° 08’ 27” N.A.
2020 Jan 29 17h 23m 57s -24° 09’ 07” N.A.
2020 Jan 30 17h 25m 30s -24° 09’ 43” N.A.
2020 Jan 31 17h 27m 01s -24° 10’ 17” N.A.
2020 Feb 01 17h 28m 32s -24° 10’ 45” N.A.
2020 Feb 02 17h 30m 02s -24° 11’ 09” N.A.
2020 Feb 03 17h 31m 32s -24° 11’ 30” N.A.
2020 Feb 04 17h 33m 02s -24° 11’ 48” N.A.